[Rebekah doesn't know Camille as well as the rest of her family does but she likes her well enough and her brother cares about her deeply and that makes her important. And she has been helpful to Rebekah and she can even remember the false memories of Hogwarts where they were seemingly closer. With all that in mind Camille will find a wrapped up book of William Blake's poetry (one of Klaus' favorites, it's not a coincidence, Rebekah isn't known for her subtly) along with a note.
From Now On Our Troubles Will Be Out Of Sight
Merry Christmas
Sincerely,
Rebekah]